Examples with RepositoryConnection org.openrdf.repository.RepositoryConnection used on opensource projects

Example 56 with RepositoryConnection

use of org.openrdf.repository.RepositoryConnection in project incubator-rya by apache.

the class RdfCloudTripleStoreConnectionTest method testOSPObjRange.

public void testOSPObjRange() throws Exception {
    RepositoryConnection conn = repository.getConnection();
    URI loadPerc = vf.createURI(litdupsNS, "loadPerc");
    Literal six = vf.createLiteral("6");
    Literal sev = vf.createLiteral("7");
    Literal ten = vf.createLiteral("10");
    conn.add(cpu, loadPerc, six);
    conn.add(cpu, loadPerc, sev);
    conn.add(cpu, loadPerc, ten);
    conn.commit();
    String query = "PREFIX org.apache: <" + NAMESPACE + ">\n" + "select * where {" + "?s ?p ?o.\n" + "FILTER(org.apache:range(?o, '6', '8'))." + "}";
    TupleQuery tupleQuery = conn.prepareTupleQuery(QueryLanguage.SPARQL, query);
    CountTupleHandler cth = new CountTupleHandler();
    tupleQuery.evaluate(cth);
    conn.close();
    assertEquals(cth.getCount(), 2);
}

Example 57 with RepositoryConnection

use of org.openrdf.repository.RepositoryConnection in project incubator-rya by apache.

the class RdfCloudTripleStoreConnectionTest method testInverseOf.

public void testInverseOf() throws Exception {
    if (internalInferenceEngine == null) {
        // infer not supported;
        return;
    }
    RepositoryConnection conn = repository.getConnection();
    conn.add(new StatementImpl(vf.createURI(litdupsNS, "degreeFrom"), OWL.INVERSEOF, vf.createURI(litdupsNS, "hasAlumnus")));
    conn.add(new StatementImpl(vf.createURI(litdupsNS, "UgradA"), vf.createURI(litdupsNS, "degreeFrom"), vf.createURI(litdupsNS, "Harvard")));
    conn.add(new StatementImpl(vf.createURI(litdupsNS, "GradB"), vf.createURI(litdupsNS, "degreeFrom"), vf.createURI(litdupsNS, "Harvard")));
    conn.add(new StatementImpl(vf.createURI(litdupsNS, "Harvard"), vf.createURI(litdupsNS, "hasAlumnus"), vf.createURI(litdupsNS, "AlumC")));
    conn.commit();
    conn.close();
    internalInferenceEngine.refreshGraph();
    conn = repository.getConnection();
    String query = "PREFIX rdfs: <" + RDFS.NAMESPACE + ">\n" + "PREFIX rdf: <" + RDF.NAMESPACE + ">\n" + "PREFIX lit: <" + litdupsNS + ">\n" + "select * where {lit:Harvard lit:hasAlumnus ?s.}";
    TupleQuery tupleQuery = conn.prepareTupleQuery(QueryLanguage.SPARQL, query);
    CountTupleHandler tupleHandler = new CountTupleHandler();
    tupleQuery.evaluate(tupleHandler);
    assertEquals(3, tupleHandler.getCount());
    query = "PREFIX rdfs: <" + RDFS.NAMESPACE + ">\n" + "PREFIX rdf: <" + RDF.NAMESPACE + ">\n" + "PREFIX lit: <" + litdupsNS + ">\n" + "select * where {?s lit:degreeFrom lit:Harvard.}";
    tupleQuery = conn.prepareTupleQuery(QueryLanguage.SPARQL, query);
    tupleHandler = new CountTupleHandler();
    tupleQuery.evaluate(tupleHandler);
    assertEquals(3, tupleHandler.getCount());
    conn.close();
}

Example 58 with RepositoryConnection

use of org.openrdf.repository.RepositoryConnection in project incubator-rya by apache.

the class RdfCloudTripleStoreConnectionTest method testSPOObjRange.

public void testSPOObjRange() throws Exception {
    RepositoryConnection conn = repository.getConnection();
    URI loadPerc = vf.createURI(litdupsNS, "loadPerc");
    Literal six = vf.createLiteral("6");
    Literal sev = vf.createLiteral("7");
    Literal ten = vf.createLiteral("10");
    conn.add(cpu, loadPerc, six);
    conn.add(cpu, loadPerc, sev);
    conn.add(cpu, loadPerc, ten);
    conn.commit();
    String query = "PREFIX org.apache: <" + NAMESPACE + ">\n" + "select * where {" + "<" + cpu.stringValue() + "> <" + loadPerc.stringValue() + "> ?o.\n" + "FILTER(org.apache:range(?o, '6', '8'))." + "}";
    TupleQuery tupleQuery = conn.prepareTupleQuery(QueryLanguage.SPARQL, query);
    CountTupleHandler cth = new CountTupleHandler();
    tupleQuery.evaluate(cth);
    conn.close();
    assertEquals(cth.getCount(), 2);
}

Example 59 with RepositoryConnection

use of org.openrdf.repository.RepositoryConnection in project incubator-rya by apache.

the class RdfCloudTripleStoreConnectionTest method testSameAs.

public void testSameAs() throws Exception {
    if (internalInferenceEngine == null) {
        // infer not supported;
        return;
    }
    RepositoryConnection conn = repository.getConnection();
    conn.add(new StatementImpl(vf.createURI(litdupsNS, "StudentA1"), OWL.SAMEAS, vf.createURI(litdupsNS, "StudentA2")));
    conn.add(new StatementImpl(vf.createURI(litdupsNS, "StudentA2"), OWL.SAMEAS, vf.createURI(litdupsNS, "StudentA3")));
    conn.add(new StatementImpl(vf.createURI(litdupsNS, "StudentB1"), OWL.SAMEAS, vf.createURI(litdupsNS, "StudentB2")));
    conn.add(new StatementImpl(vf.createURI(litdupsNS, "StudentB2"), OWL.SAMEAS, vf.createURI(litdupsNS, "StudentB3")));
    conn.add(new StatementImpl(vf.createURI(litdupsNS, "StudentA1"), vf.createURI(litdupsNS, "pred1"), vf.createURI(litdupsNS, "StudentB3")));
    conn.add(new StatementImpl(vf.createURI(litdupsNS, "StudentB1"), vf.createURI(litdupsNS, "pred2"), vf.createURI(litdupsNS, "StudentA3")));
    conn.commit();
    conn.close();
    internalInferenceEngine.refreshGraph();
    conn = repository.getConnection();
    // query where finds sameAs for obj, pred specified
    String query = "PREFIX rdfs: <" + RDFS.NAMESPACE + ">\n" + "PREFIX rdf: <" + RDF.NAMESPACE + ">\n" + "PREFIX lit: <" + litdupsNS + ">\n" + "select ?s where {?s lit:pred1 lit:StudentB2.}";
    TupleQuery tupleQuery = conn.prepareTupleQuery(QueryLanguage.SPARQL, query);
    CountTupleHandler tupleHandler = new CountTupleHandler();
    tupleQuery.evaluate(tupleHandler);
    assertEquals(1, tupleHandler.getCount());
    // query where finds sameAs for obj only specified
    query = "PREFIX rdfs: <" + RDFS.NAMESPACE + ">\n" + "PREFIX rdf: <" + RDF.NAMESPACE + ">\n" + "PREFIX lit: <" + litdupsNS + ">\n" + "select ?s where {?s ?p lit:StudentB2.}";
    tupleQuery = conn.prepareTupleQuery(QueryLanguage.SPARQL, query);
    tupleHandler = new CountTupleHandler();
    tupleQuery.evaluate(tupleHandler);
    // including sameAs assertions
    assertEquals(3, tupleHandler.getCount());
    // query where finds sameAs for subj, pred specified
    query = "PREFIX rdfs: <" + RDFS.NAMESPACE + ">\n" + "PREFIX rdf: <" + RDF.NAMESPACE + ">\n" + "PREFIX lit: <" + litdupsNS + ">\n" + "select ?s where {lit:StudentB2 lit:pred2 ?s.}";
    tupleQuery = conn.prepareTupleQuery(QueryLanguage.SPARQL, query);
    tupleHandler = new CountTupleHandler();
    tupleQuery.evaluate(tupleHandler);
    // including sameAs assertions
    assertEquals(1, tupleHandler.getCount());
    // query where finds sameAs for subj only specified
    query = "PREFIX rdfs: <" + RDFS.NAMESPACE + ">\n" + "PREFIX rdf: <" + RDF.NAMESPACE + ">\n" + "PREFIX lit: <" + litdupsNS + ">\n" + "select ?s where {lit:StudentB2 ?p ?s.}";
    tupleQuery = conn.prepareTupleQuery(QueryLanguage.SPARQL, query);
    tupleHandler = new CountTupleHandler();
    tupleQuery.evaluate(tupleHandler);
    // including sameAs assertions
    assertEquals(3, tupleHandler.getCount());
    // query where finds sameAs for subj, obj specified
    query = "PREFIX rdfs: <" + RDFS.NAMESPACE + ">\n" + "PREFIX rdf: <" + RDF.NAMESPACE + ">\n" + "PREFIX lit: <" + litdupsNS + ">\n" + "select ?s where {lit:StudentB2 ?s lit:StudentA2.}";
    tupleQuery = conn.prepareTupleQuery(QueryLanguage.SPARQL, query);
    tupleHandler = new CountTupleHandler();
    tupleQuery.evaluate(tupleHandler);
    assertEquals(1, tupleHandler.getCount());
    conn.close();
}

Example 60 with RepositoryConnection

use of org.openrdf.repository.RepositoryConnection in project incubator-rya by apache.

the class RdfCloudTripleStoreConnectionTest method testEquivPropOf.

public void testEquivPropOf() throws Exception {
    if (internalInferenceEngine == null) {
        // infer not supported;
        return;
    }
    RepositoryConnection conn = repository.getConnection();
    conn.add(new StatementImpl(vf.createURI(litdupsNS, "undergradDegreeFrom"), OWL.EQUIVALENTPROPERTY, vf.createURI(litdupsNS, "ugradDegreeFrom")));
    conn.add(new StatementImpl(vf.createURI(litdupsNS, "UgradA"), vf.createURI(litdupsNS, "undergradDegreeFrom"), vf.createURI(litdupsNS, "Harvard")));
    conn.add(new StatementImpl(vf.createURI(litdupsNS, "GradB"), vf.createURI(litdupsNS, "ugradDegreeFrom"), vf.createURI(litdupsNS, "Harvard")));
    conn.add(new StatementImpl(vf.createURI(litdupsNS, "GradC"), vf.createURI(litdupsNS, "ugraduateDegreeFrom"), vf.createURI(litdupsNS, "Harvard")));
    conn.commit();
    conn.close();
    internalInferenceEngine.refreshGraph();
    conn = repository.getConnection();
    String query = "PREFIX rdfs: <" + RDFS.NAMESPACE + ">\n" + "PREFIX rdf: <" + RDF.NAMESPACE + ">\n" + "PREFIX lit: <" + litdupsNS + ">\n" + "select * where {?s lit:ugradDegreeFrom lit:Harvard.}";
    TupleQuery tupleQuery = conn.prepareTupleQuery(QueryLanguage.SPARQL, query);
    CountTupleHandler tupleHandler = new CountTupleHandler();
    tupleQuery.evaluate(tupleHandler);
    assertEquals(2, tupleHandler.getCount());
    conn.close();
}